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A simple feedback-loop for a frequency lock on a narrow atomic transition

Abstract : In this paper we consider an atomic system with a narrow transition probed with a user- controlled electromagnetic radiation, the basis of atomic clocks. We propose a simple feedback-loop in order to lock automatically the probe frequency on the atomic transition, allowing continuous clock operation without any preparation steps. The proof of the convergence of the feedback-loop is based on averaging arguments, with approximations compatible with realistic physical parameters. Numerical simulations illustrate the robustness of the proposed feedback-loop versus measurement noise and bias.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00485732
Contributor : François Chaplais <>
Submitted on : Friday, May 21, 2010 - 4:04:32 PM
Last modification on : Thursday, July 1, 2021 - 5:32:07 PM

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  • HAL Id : hal-00485732, version 1

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Silvère Bonnabel, Pierre Rouchon, Guilhem Dubois. A simple feedback-loop for a frequency lock on a narrow atomic transition. 2008 IFAC World Congress, Jun 2008, Seoul, South Korea. pp.6257-6262. ⟨hal-00485732⟩

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